Circular-knitting machine.



No. 653,562. Patented IuIy Io, |900. n. w. sco'r'r, L. II. D. WILLIAMSaI II. swIIIGLEIIunsT, In.

CIRCULAR KNITTING MAGHINE.

(Application med :une 1a, 189s.) (llo'llodel.) 4.5heets-Sheet I.

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No. 653,562. Patented my lo; |900. mw. scoTT, L. N. n. w||.|.|AMs a H.swlNsLEHusT, 1n.

CIRCULAR KNITTING MAGHINE.

(Applicationmed June 1a, 139s.)

4 Sheets-Sheet 2.

(No Mudel.)

MM 2.15m

Tn: Norms Prrzks co. PHoToLITHo.. wAsumwN. n. c.

, Patented my lo, :900. n. w. scoTT, L. N. n..w|L|.|AMs & H.swmeLEHunsT, 1R.

CIRCULAR KNITTINIIvlV MACHINE.

(App1ication led June 13, 1898.)

(No Model.)

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rus Norms Fergus oo., rnomLlTNo.. wAsmuumn. n. c.

No. 653,562. Patented yIuly I0, |900. K

R. W. SCOTT, L. N. D. WILVLIAMS- & HLSWINGLEHURST, 1R.

CIRCULAR KNITTING MACHINE.

(Application led June 13, 1898.)

4 Sheets-Sheet `4.

(No Model.)

z mms mais oo. vncmxuruo., wnsm'num l NITE STATE PATEMI" FFICE.

RoRERT w. scoTT, or PHILADELPHIA,`LoU1s N. n. wILLIAMs, or ASH'- BoURNE,AND HARRY swINeLEHURsT, JR., or PHILADELPHIA, PENN:

. sYLvANIA.

clRcuLARKNlT'TINe lvlAel-HNE.f

SPECIFICATION forming part of Letters r:Bai-.ent No. 653,562, dated July10, 190D.

Application led June 13,1898.

To all whom it mwyconen:

Be it known that we, ROBERT W. SOTfJLof Philadelphia, LOUIS N. D.WILLIAMS, of Ashbourne, Montgomery county, and HARRY SwINGLEHURsT, J r.,of Philadelphia, Penu-j sylvania, have inventedpcertain Improvements inCircular Knitting Machines, of which the following is a specification.

Our invention consists of cert-ain im provements in the knitting-machinefor which L. N. D. Williams and Harry Swinglehurst, J r.,obtained-Letters Patent of the United States, dated May 24, 1898, No.604,646, the object of our present improvements being to provide" anautomatic Inachine which will knit a tubeA of any desired length withany desired width of stripe therein, will produce a tight or slackstitch, as required, will enable slack stitches to be formed at thosewales which lie at and near the point where the yarn is changed instriping as well as in corresponding wales of the courses preceding 'andfollowing that in which the changelis4 effected, will insure the properfeeding of the new yarn to the needlesy on each change and prevententanglement of -in end elevation looking vin the direction of the arrowy, Fig. 1', a number of parts in the distance being omitted in order toavoid confusion. Fig. 4 is a sectional plan view on the line w w, Fig.3. Figs. 5 to 18, inclusive, are detached views of various parts of themachine', illustrating 'features of construction not shown withsufficient clearness in the general views; and Fig. 19 is an enlarged orexaggerated'view of partfof a tubular web of fabric 4such as our machineis designed to produce. v

The iixed table orbed of the machineis represented at 1, this table orbed having suitable depending bearings for a driving-shaft 2, which maybe operated either by hand or serai No. 633.347. (No model.)

t power, as desired, the operation in the latter case being controlledby a clutch, which can be moved by means of a shipper-lever3, (shown inFigs. 1 and 2,) so as to arrest the voperation of the machine in themanner here-4 inat'terset forth. .The shaft2 has secured to it a`bevel-wheel 4, which meshes with a bevelpinion 5, secured to or formingpart of the needlefcylinder carrier 6, as shown in Fig. 3, Thiscarrier,having an annular flange 7 ,which extends up into theneedle-cylinder 8, is split at one or more points, as shown by dottedlines in Fig. 3, and is tapered internally for vthe action of an annularwedge, 9, which has `a hollow threaded stem 10 extending down below thecarrier 6 and threaded for engagement with a nut 1l, which bears uponthe under side of said carrier and has at its lower end an annularflange 12, whereby it may be readily manipulated so as to draw down the'wedge 9, and thereby expand the4 split and tapered ring 7 in order tofirmly clutch the needle-cylinder 8 to the carrier 6, or the nut Amay beturned in the reverse direction, so as to permit the wedge to rise, andthus permit contraction of the ring 7 until its 4hold upon theneedle-cylinder 8 is released andthe cylinder, with its needles, can beremoved -from the carrier and from the annular cam-cylinder 13, whichsurrounds the lower portion of the needle-cylinder and is secured in anyappropriate manner to the table or bed 1.

Mounted upon the upper portion of the needle-cylinder is a web-holderring 14, carrying' a series of radially-guided web-holders 15, which asthe needle-cylinder rotates are moved back and forth by a cam 16a andare at other rtimes held in the projected position by a cam 16h, Fig.17, upon aV web-holder-cam ring 16, which surmounts and surrounds thering 14, said web-holder-cam ring being prevented from rotating with theneedle-cylinder by reason of the engagement of one or other of a pair oflugs 17 on the ring with a fixed arm or bracket 19, projecting upwardlyfromthe annular cam-cylinder 13,- as shown in Fig; 3, a certain amountof play being permitted between the lugs 17 in order that thewebholderoperating cams will assume their proper relation to theknitting-cams whether the needle-cylinder is being rotated to the rightor IOC) to the left. Each of the web-holders 15 has at the bottom ashoulder 15, as shown in Fig. 18, which shoulder by contact with theupper portion of the needle-cylinder 8 will prevent undue inwardmovement of the webholders when they are passing the points of junctionof the cams 16 and 16, undue outward movement of the web-holders at suchpoints being prevented bycontact of the cuter ends of said web-holderswith the rim of the web-holder ring 14.

On the shaft 2 is a grooved cam 20, which engages with a pin 21,projecting from the lower end of a lever 22, the latter being hung so asto be free to swing upon a shaft 23, mounted in suitable bearings in thetable or bed 1 and in a longitudinally-projecting arm or bracket 24 onsaid table or bed. The lever 22 carries a pivoted pawl 25, as shown inFig. 5 and by dotted lines in Fig. 2, said pawl being acted upon by aspring 26, whereby it is held in engagement with the teeth of aratchetwheel 27, secured to one end of a drum 29, which we willhereinafter designate as a primary pattern-drum,7 and which is mountedso as to be free to turn upon a shaft or spindle 30, secured to andprojecting from the table or bed l, a handle 31 at the outer end of thehub 32 of the drum serving as a means whereby the latter may be rotatedvindependently of the pawl-and -ratchet mechanism when desired.

Backward motion of the drum 29 is normally prevented by means of aretainer pawl or detent 33, carried by a lever 34, which is hung to apin 35, carried by a bracket 36, the latter being secured to andprojecting upwardly from the longitudinal arm 24 on the fixed table orbed of the machine. By depressing the outer end of the lever 34,however, the retaining pawl or detent 33 can be withdrawn fromengagement with the teeth of the ratchet-wheel 27, and at the same timeand by the same action the pawl 25 will also be withdrawn fromengagement with said teeth, owing to the fact that a set-screw 37 on thelever 34 strikes a projecting tail 39 on the pawl 25, and therebyeffects the retraction of the latter. The outer end of the lever 34 maybe held in the depressed position for any desired length of time byswinging into engagement therewith a pivoted arm or catch 40, hung tothe bracket 36, as shown in Figs. 1 and 2.

Secured to the shaft 2 is a cam 4l, which acts upon an enlargement orshoe 42 at the lower end of a lever 43, which is loosely hung upon theshaft or spindle 30 and carries at its upper end a pawl 44, adapted toengage with a ratchet-wheel 45, secured to the shaft 46 of a drum 47,which we will designate a secondary pattern-drum and which is carried bya yoke or frame 49, having trunnions 50, mounted in brackets 51 on thefixed table or bed, as shown in Figs. 1, 2, and 3. The pawl 44 is actedupon by a spring 52, which tends to pull the toothed end of the pawlinto engagement with the teeth of the ratchet-wheel 45, this movementbeing restricted by contact of the projecting finger 53 of the pawl witha pin or stud 54, projecting from one of the brackets 5l. The upper endof the lever 43 is drawn rearwardly by the action of a spring 55, butthis movement is normally restricted by Contact of a pin 56 on the leverwith the bent end 57 of an arm 59, the latter being secured to the innerend of the shaft 23. Hence so long as the movement of the pawl 44 isthus restricted it will not move the ratchetwheel 45, this movementbeing less than the length of a tooth of said wheel. Vhen, however, thebent end of the arm 59 is raised so as to free the pin 56 from itscontrol, the upper arm of the lever 43 and its pawl 44 will be drawnforward under the action ofthe spring 55, so that the pawl will engage afresh tooth of the ratchet-wheel 45, and when the lever 43 is actuatedby the cam 4l will move said ratchet-wheel and also the secondarypatterndrum 47 to the extent of one tooth. A projecting stud 5S servesto limit thc downward movement of the bent end 57 of the arm 59, undert-he influence of the spring 58, Fig. 6, and thus limits the rockingmovement of the shaft 23 toward the primary pattern-drum 29.

The secondary pattern-drum 47 carries projecting lugs or pins 60,whichact upon threadguiding levers 61, hung to a suitable transverse pin onthe frame 49, the outer ends of these levers 6l, having eyes for theguidance of the knitting-yarns, and the levers being so disposed inrespect to the needles of the machine that when the outer end of thelever is depressed its yarn-guiding eye will be' in position to feed theyarn to the needles of the cylinder; but when said outer end of thelever is raised its yarn will be fed over the tops of the needles andwill not engage the same. Hence by a proper manipulation of the levers6l, duc to a proper disposal of the pins or studs 60 upon the drum 47,any desired one of the levers may be caused to feed its yarn to theneedles, the other yarns oating on the inside of the web ready to belikewise brought into action when required, so that the striping of theweb by the feeding of different-colored yarns successively to theneedles and the change from one color to another can be instantlyeffected without any stoppage of the rotation of the needle-cylinder.

An arm 62 projects forwardly from one side of the frame 49 and carriesat its outer end a spindle 63, to which is secured a hub 64, having aseries of projecting blades 65, which fit between the forward ends ofthe yarn-guiding levers 61, as shown in Fig. l,

the shaft or spindle 63 also having a crank- 66, to which is connectedthe forward end of a link or rod 67, which is connected at its inner endtothe upper arm of a lever 68, hung to a stud on the frame 49 and actedon by a spring 69, the lower arm of said lever having an inclined head70, which is adapted to be acted upon by pins 71, projecting from theIOO IIO

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end of the drum 47. Hence whenever said drum is moved so as to cause oneof its pins or studs 60 to act upon a yarn-guiding lever the lever 69will also be actuated and a quick vibrating movement will be imparted tothe blades 65, whereby said blades will be irst carried downward to theposition shown by dotted lines in Fig. 3, and then again permitted toresume their normal or elevated position under the action of the spring69, and by reason of this all of the idle yarns will be drawn taut orcaused to follow a straight line from the yarn-guiding eyes of thelevers to the inner edges of the depressed blades. Hence the yarn of thelever which is being depressed cannot carry down with it any other ofthe yarns, as it might do if these yarns were simply floating loosely,and the yarn from the eye of the lever, when the latter is fullydepressed, will be carried directly across the path of the needles, soas to insure the feeding of the yarn t0 the latter at the proper place.

Secured to the frame 49 is a plate 72, whic has at one end a segmentalneedle-guard 73, the latter being of inverted-U shape, so that theraised needles can pass between the inner and outer walls of the same,the outer wall of said needle-guard at the end which the needlesapproach in their movement being inclined, as shown in Fig. 2, and thisinclined edge 74 being beveled, as shown in Figs. 2 and 7, so as to forma latch-turner for throwing down into their proper position anyneedle-latches which may have accidentally been raised and which would,unless thus depressed, interfere with the perfect or proper feeding ofthe yarn to their needles.

Secured to the inner wall of the needleguard 73 and extending part wayaround the circular series of needles, on the inner side of the same, isa yarn-detlector 75, preferably consisting simply of a bent wire orplate, this deiiector serving as a bearing for the idle yarns runningfrom the yarn-guiding eyes of the elevated levers 6l, so that said idleyarns are directed in a course which will prevent them from becomingengaged with the needles.

One side of the frame 49 is provided with a plate 76, as shown in Figs.1, 3, and 8, this plate carrying a rod or pin 77, which eX- tends underthe rear arms of the thread-guiding levers 61 and serves as a stop forthe downward movement of said rear arms of the levers under the actionof the springs 7 8, whereby they are normally drawn downward. By thismeans contact of the rear ends of the levers 61 with the surface of thedrum 47 is prevented, and the friction and'wear which would result fromsuch contactare obviated.

The frame 49, with its thread-guiding levers and their appurtenances,can be swung backward on the trunnions 50, so as to carry thesaidthread-guiding levers and their appurtenances away from the upperportion of the needle-cylinder in order to permit of the ready removalof said cylinder from the machine and the ready reinsertion of the sameor the insertion of another cylinder in its place, this being necessarywhen the machine is used for producing striped tubes for the 4 legs ofstockings and another machine is used for making the feet, as in suchcase it is preferable to transfer the needle-cylinder, with the workupon it, from one machine to the other rather than to cast off the workfrom the needles of the cylinder, as the latter course necessitates therunning on of the stitches of the knitted tube upon the needles of thefooting-machine.

When the arm 49 is depressed or occupies its normal positionthat is tosay, with the thread -guiding levers and their appurtenances inoperative relation with the needles of the needle-cylinder-said arm issupported by the seating of the projecting ends of the drum -shaft 46 inpockets in the opposite brackets or standards 51 and is locked in thisposition by means of a pivoted bolt 90,-hung to the under side of one ofthe side bars of the frame and engaging with a notch in the bracket 19,as shown in Fig. 3, the lever being held in this locked position by theaction of a spring 91. The lever 90 is connected by a link 92 toaswinging arm 93, hung to the drum-shaft 46 and having two notches 94and 95, each adapted for the reception of a pin 96, projecting from oneof the brackets or standards 51, the notch 94 receiving said pin `whenthe frame 49 is depressed and the notch 95 receiving the pin when saidframe is raised, as shown in Fig. 9, the arm V93 then serving to supportthe frame 49 in the elevated position, from which it cannot be moveduntil said arm is withdrawn by the action of the lever 90, so as to freethe notch 95 from engagement with the pin 96. The arm 93 also aids inlocking the frame 49 in the depressed position, since swinging movementof said arm 93 to a certain extent is necessary before the frame 49 canbe lifted.

. We will now describe the means whereby the movement of the secondarypattern-drum 47 is controlled.

At one end of the primary drum 29 is a screw-thread 100 and at the otherend of the drum is a series of openings 101, disposed in spiral form,said spiral having the same pitch as the screw-thread 100, and certainof these openings 101 receive pins or plugs 102, which can be readilyapplied or removed, so as to vary the disposition of the pins upon thedrum, thus the pins may simply have stems fitting snugly in the openings101, or said pins may have threaded stems and the openings may beinternally threaded for the reception of the same.

Free to slide on the shaft 23, but splined thereto so as to have norotating movement independently thereof, is a sleeve 103, which has atone end a bladeA or plate 104, engagingA to which is pivoted a pawl 106,adapted to be acted upon by the pins 102 of the drum 29 as the latterrotates, the longitudinal movement of the sleeve 103, under the inuenceof the screw-thread 100, serving to maintain the pawl106 always in linewith the spiral row of pins 102. The pawl 106 is mounted on the bracket105, as shown in Fig. 10, so that it opposes a rigid resistance to theaction of the pins 102 when the drum 29 is traveling forward or in thedirection of the arrow, Fig. 2; but it can be tripped on the backwardmovement of the drum, a spring 107 permitting such tripping movement andrestoring the pawl to its normal position after each such movement. Thepawl 106 has two faces 109 and 110 for being acted upon by the pins 102of the drum 29, the face 100 being the one first acted upon by the pin,as shown in Fig. 11, and being farther from the axis of the drum 29 thanthe face 110, these two faces being separated from each other by a space111, upon which the pin 102 bears, as shown in Fig. 12, after it hasmoved the pawl by contact with the face 109 and before it impartsfurther movement to the pawl by contact with the face 110 on its nextforward movement, as shown in Fig. 13. By reason of this constructioneach of the pins 102 imparts two successive movements to the pawl 10G,and hence to the bracket 105, sleeve 103, and shaft 23,three successivemovements of the primary pattern-drum 29 being necessary in order toeifect a complete back-and-forth rocking of the shaft 23 for a purposerendered apparent hereinafter.

A screw-stem 112 is adapted to a threaded opening in the bracket 105, sothat it can be longitudinally adjusted in respect to said bracket andcan be locked in position after adjustment by means of a nut 113, andthe enlarged head 114 of this screw-stem fits between lugs 115,projecting upwardly from a cam-plate 116, (shown in Fig. 14,) saidcamplate being mounted so as to slide freely upon the projectingbasediange of the annular camcylinder 13 and having a cam 117, which, asshown in Figsfand 15, acts upon a set-screw 118a carriedl by a lever118, which is hung to saJcam-cylinder, said lever acting upon a 'pin119, which projects from the draw-down cam 120 of the cam-cylinder andis adapted to an inclined slot 121 in the latter, as shown in Fig. 15,so that when the lower end of the lever 118 is lifted by the action ofthe cam 117 the draw-down cam 120 will be depressed in the cam-cylinderand will'draw down the needles of the needle-cylinder to such an extentas to form long stitches; but when the bar 116 is moved so as to freethe set-screw 118a of the lever 118 from the influence of the cam 117the draw-down cam 120 will be permitted to rise in the cam-cylinder andshorter stitches will be drawn by the needles of the needle-cylinder,thereby providing for the production of slack or stiff work, as desired,the point at which the character of the work changes being dependentupon the longitudinal relation of the cam 117 to the bracket 105 andthis relation being changed as desired by the adjustment of thescrew-stem 112.

A lug or projection 122 on the cam-bar 116 serves by contact with a pin123 on the knockoff lever 3 to automatically stop the opera- 'tion ofthe machine when the production of understood on reference to Fig. 19,which represents an exaggerated view of a piece of the knitted web atand near the point where the yarn changes. On reference to this gure itwill be observed that at the point where the change takes place bothyarns are fed to the needles and form stitches for a few Wales, and inthe absence of any provision for slacken-ing the wales at and near thispoint such formation of double stitches would in producing stiff workhave a tendency to overload the needles and cause the stitches to eut orbreak. We therefore lengthen the stitches slightly both in the changecourse and in the courses preceding and following the same in that-portion of the web where a change of yarn is effected, as will be fullyunderstood on reference to Fig. 19, this result being accomplished inthe following manner:

In a suitable radial slot in the table o1' bed 1 of the machine isguided a bar 124, which may be termed a stitch-controlling bar and whichis acted upon by a coiled spring 125, tending to move it forwardly, sothat its forward end will project into the path of the cam-likeperiphery of the needle-cylinder carrier 6, which has the configurationshown in Figs. 4and 16 and hereinafter to be described, the bar 124being normally retained in the retracted position, as shown in Figs. 3and 4, by engagement of a pin 126 on said bar With a finger 127, whichprojects laterally from the arm 59 of the shaft 23, whereby theoperation of the pattern-drum-actuating pawl 44 is controlled. The bar124 has at its rear end a slot 129 for the reception of a guide-pin 130,and the forward end of the bar 124 can rise and fall as well as moveforward and backward under the influence of the cams on the periphery ofthe cylinder-carrier 6. The bar 124is adapted to act upon a pin 131,depending from an arm 132, which projects from the lever 118, wherebythe draw-down cam 120 will be depressed and will be retained in thedepressed position as long as said bar 124 is held up, said draw-downcam resuming its normal position as soon as the bar 124 is allowed todrop.

IOO

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The flange of the needle-cylinder carrier' has a segmental peripheralportion 133, with s its ends rounded or beveled, as shown in Fig.

and 136, into which the forward end of the bar 124 can be projected bythe action of the spring 125 when said bar is released from the controlof the linger 127.

Owing to the fact that the pawl106 has two acting faces 109 110 atdifferent distances from the axis of the primary pattern-drum 29, theaction of a pin 102 of said patterndrum upon the face 109 of the pawlwill not cause such movement of the arm 59 as to release the pin 56 ofthe lever 43 from the control of the bent end of said arm; but thismovement is sufficient to raise the linger 127 out of engagement withthe pin 126 of the bar 124. Hence the forward end of the latter islprojected by the spring 125 into the recess 135 in the periphery of thecylinder-carrier flange, whereby it can be acted upon by the cam 133, soas to be lifted, and thus operate the lever 11S and draw-down cam 120,so as to draw long stitches upon a certain number of needles of thecylinder, this number being that represented by the peripheral extent ofthe cam 133. As soon as the cam passes from under the bar 124 the latterdrops into the recess 136, so as to permit of the rise of the draw-downcam and the resumption of the normal length of stitch in the fabric, thebar 124 being then pushed backward by the cam 134, but immediatelyentering the recess 135 again, owing to the fact that the nger 127 israised and does not retain the bar 124 in the retracted position. On thenext forward movement of the plug 102 of the primary pattern-drum 29 afurther movement is imparted to the pawl 106, shaft 23, and arm 59, andthe lever 43 is now released, so that its pawl 44 will engage with theratchet-wheel 45 and move the same and the secondary patterndrum 47 tothe extent of one tooth. This brings about a rearrangement of theyarnguide levers and a change of the yarn, and at the same time thatthis is being effected the cam 133 is again acting upon the bar 124, soas to depress the draw-down cam 120 and form longer stitches in theknitted web, the cam 133 being so timed in respect to the cam 41, whicheffects the movement of the secondary pattern-drum 47, that such longstitches will always be drawn at the time that the change inknitting-yarn is being effected. The bar 124 again drops into therecess136, is again pushed back by the camf134, and again moves forward,owing to the fact that the finger 127 of the arm 59 is still raised.Hence there will be still another lifting movement of the bar 124 by thecam 133 and the formation of another series of longer stitches in thecourse following that in which the change of yarn was effected; butmeantime the primary pattern-drum 29 has been moved forward again to theextent of one tooth, and if no other change of yarn is to be effectedthe pawl 106 drops to the position shown in Figs. 2 and 11,

so as to permit the arm 59 to descend into..

position for again retaining the lever 43 and at the same time bring thefinger 127 into position to engagewith the pin 126 of the bar 124, so asto retain the latter when it is again pushed back by the cam 134, theinherent elasticity of the linger 127 permitting it to yield upwardly asthe pin is pushed under double-yarn stitches would draw through theAlong stitches of said preceding course, so Invori der to effect thesechanges in the knitted as to prevent breaking of the yarn.

web, it is simply necessary to operate the re' `A tainer 127, so as torelease the stitchbar 124 for one course only if the long stitches areto be drawn only in the course preceding the change course and for twocourses only if the long stitches are to be drawn only in the changecourse and in the course preceding the same. The finger 127 mayhecarried by an arm independent of the arm 59, but acted upon by thepins 102 of the drum 29.

Having thus described our invention, we claim and desire to secure byLetters Patent- 1. A pattern-drum having at one end a threaded portionand at the other end and longitudinally beyond said threaded portion aportion with projecting pins 'disposed in a spiral .course having apitch similar to that of the threaded portion of the drum, substantiallyas specified.

2. Thecombination in a knitting-machine, of a secondary pattern-drum,its operating mechanism, a controller therefor, a primary pattern-drumhaving at one end a threaded portion and at the other end andlongitudinally beyond the threaded portion a series of pins disposed ina spiral course corresponding as to pitch with the thread of the drum,means for rotating said primary pattern-drum, and a sleeve mounted so asto traverse parallel with the axis of said drum on a shaft connected tosaid controller, said sleeve having a portion for engaging with thethread ofthe IZO drum, and another portion for engaging with the pins ofthe same, substantially as specified.

3. The combination in a knitting-machine, of a secondary pattern-drum,its operating mechanism, a controller therefor, a primary pattern-drumhaving at one end a threaded portion, and at the other end andlongitudinally beyond the threaded portion, spirallyarranged pinscorresponding as to pitch with the thread of the drum, means forrotating said primary pattern-drum, a rock-shaft parallel with the axisof the Said drum and connected to the controller, and a sleeve splinedon said shaft so that it can move longitudinally thereon but cannot turnindependently thereof, said sleeve having a projection engaging with thethreaded portion of the drum and anotherproj ection engaging with thepins of said drum, substantially as specified.

4. The combination of the pattern-drum and its pins,with means forrotating the drum, an arm to be acted on by said pins, said arm having apivoted and spring-actuated pawl rigid against pressure in one directionbut yielding to pressure in the opposite direction, substantially asspecified.

5. The combination of a pattern-drum having projecting pins, means forrotating said drum, and pattern-drum-actuated mechanism having a pawl oriinger with two contactsurfaces for the action of said pins, one of saidcontact-surfaces being closer to the axis of rotation of the drum thanthe other, substantially as specified.

6. The combination of a pattern-drum having projecting pins, means forrotating said drum, and pattern-drum-actuated mechanism having a pawl orfinger with two contactsurfaces for being acted upon by said pins, oneof said contact-surfaces being closer to the axis of rotation of thedrum than the other and the two contact-surfaces being separated fromeach other by a portion substantially concentric with the axis ofrotation of the drum, substantially as specified.

7. The combination of a pattern-drum having a ratchet-wheel thereon, alever having a pawl for engagement with said ratchet-wheel, means foroperating said lever, a retaining pawl or detent, a lever carrying thesame and having a portion for operating the actuatingpawl so as to eectthe simultaneous withdrawal of both pawls, and a pivoted catcharm forretaining said detent-lever in the depressed position, substantially asspecified.

8. The combination of the needles and needle-operating devices of aknitting-machine with yarn-guides movable into and out of yarn-feedingrelation with the needles, movable blades for engaging the yarn fromeach of said feeding-guides and drawing it across the row of needles andmeans for operating said blades so as to cause their acting edges toswing from the outside to the inside of the row of needles,substantially as specified.

9. The combination of the needles and needle-operating devices of aknitting-machine, with yarn-guides movable into and out of yarn-feedingrelation with the needles, and movable blades for engaging the yarnsfrom said guides drawing the idle yarns away from the needles and theknitting-yarn into engagement with said needles and means for operatingsaid blades so as to cause their acting edges to swing from the outsideto the inside of the row of needles, substantially as specifled.

10. The combination ofthe needles and ncedle-operating devices of aknitting-machine, with yarn-guides lnovable into and out of yarn-feedingrelation with the needles, the movable yarn-engaging blades, andprovision for simultaneously operating said blades and the yarn-guides,whereby, as the yarn-guides change position, the acting edges of theblades will swing from the outside to the inside of the row of needlessubstantially as specified.

11. The combination of the rotary needlecylinder of a knitting-machineand its needles, with a segmental needle-guard oi; inverted-U shapeforming a channel for the passage of the upper ends of the needles andhaving its outer wall inclined and presenting a beveled edge toward theapproaching needles so as to serve as a latch-turner, substantially asspecified.

l2. The combination in aknitting-machine, of a rotating needle-cylinderstructure, acamcylinder with draw-down cam, and mechanism for operatingsaid draw-down cam, said mechanism having as elements a cam on therotating cylinder structure a bar movable into and out of the pathofsaid cam and means whereby the movement of said har is imparted'to thedraw-down cam, substantially as v of a rotating needle-cylinderstructure, a camcylinder having a movable draw-down cam and mechanismfor operating said draw-down cam, said mechanism having as elements alift-cam and a push-out cam on said rotating needle-cylinder structure,and a bar movable into range of said lift-cam and pushed out of range ofthe same by the push-cam, substantially as specified.

14. The combination in a knitting-machine, of arotating needle-cylinderstructure, a camcylinder having a movable draw-down cam and operatingmechanism therefor, said mechanism having as elements a lift-cam and apush-out cam on said rotating needle-cylinder structure, a sliding barmovable into and out of range of said cams, and a retainer for TIOholding said bar in the retracted position, sub- -tion with the needles,and mechanism for effecting two successive lengthening move= ments ofsaid stitch-controlling cam, each during a partial turn of theneedle-cylinder, one of said movements being simultaneous with thechange in the position of the yarnguides and the other preceding saidchange, substantially as specified.

16. The combination in a knitting-machine, of arotating needle-cylinder,a cam structure having a movable stitch-controlling cam, a series ofyarn-guides, provision for moving the same into and out of yarn-feedingrelation with the needles, and mechanism for effecting lengtheningmovement of said stitch-controlling cam previous to the change in theposition of the yarn-guides, substantially as specified.

17. The combination in a knittingmachine,

of a rotating needle-cylinder, a cam structure having a movablestitch-controlling cam, a series of yarn-guides, provision for movingthe same into and out of yarn-feeding relation with the needles, andmechanism for effecting three successive lengthening movements of thestitch-controlling cam each during a partial rotation of saidneedle-cylinder, the first of said movements preceding the change in theposition of the yarn-guides, the second being simultaneous with saidchange, and the third following said change, substantially as specified.

18. The combination in a knitting-machine, ofthe rotatingneedle-cylinder structnre,cams thereon, a vcam-cylinder having a movabledraw-down cam, operating mechanism therefor having as one of itselements a bar movable into and out of range of the cams on the rotatingneedle-cylinder structure, a series of yarn-guides movable into and outof yarnfeeding relation with the needles, a patterndrum for operatingsaid yarn-guides, operating mechanism for said drum, a controller havingretainersfor holding out of action both of said drum-operating mechanismand the bar forming part of the operating mechanism for the draw-downcam, and means for moving said controller so as to release said parts,substantially as specified.

19. The combination in a knitting-machine, of the rotatingneedle-cylinder structure,cams thereon, a cam-cylinder having a movablethe draw-down cam, and means for impart- Y ing a two-stage movement tosaid controller, the first stage of the movement releasing the barforming part of the draw-down-cam mechanism, and the second movementreleasing the mechanism for operating the patterndrum, substantially asspecified.

20. The combination in a knitting-machine, of the needle-cylinder, itsneedles, and means for operating the same, a series of threadguidesmovable into and out of thread-guiding relation with the needles, aswinging'carrier for said thread-guides, and a swinging arm on saidcarrier adapted to engage with a projection on the fixed structure forretaining said carrier in inoperative position, substantially asspecified.

2l. The combination in a knitting-machine, of a needle-cylinder, itsneedles and means for operating the same, with a series of threadguidesmovable into and out of thread-feeding relation with the needles, aswinging carrier for said thread-guides, a locking-bolt for securing thesaid carrier in its operative position, a swinging arm on the carrierfor engagement with a projection on the xed structure in order to retainthe swinging carrier in its inoperative position, and a connectionbetween said swinging arm and the lockingbolt, substantially as specied.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

ROBERT W. SCOTT. LOUIS N. D. WILLIAMS. HARRY SWINGLEHURST, JR.Witnesses:

STooKToN BATES, WM. ZUoKLnY.

